This is a user interface I created to organise input into a content management system. The user is able to select any number of tabs to view (in this example 0 to 5), the tabs use AJAX to draw data, forms etc. At it’s core is the fantastic jquery library with UI Tabs, the tweak I made was to use a hidden dummy list so that the tabs can be added and removed in the correct index order. It may not be the most elegant solution, but it’s a relatively easy hack to get the desired UI effect.